This is just cool!
I tried it with my Stream example using xDBC  and no fake mimic.

Before IRIS there was a trial version. But always only the latest.
There was also no community.  as we know it today.
What you look for is more than 10 years back ! 

this might do it:

Class User.Scott 
{
ClassMethod Clean(infile, outfile) As %Status
{
  set in=##class(%Stream.FileCharacter).%New()
  do in.LinkToFile(infile)
  set out=##class(%Stream.FileCharacter).%New()
  set out.Filename=outfile
  do in.Rewind()
  while 'in.AtEnd {
    set line=in.ReadLine()
    set last=($e(line,*)="|")
    if last set sc=out.WriteLine(line)
    else  set sc=out.Write(line)
  }
  do in.%Close()
  set sc=out.%Save()
  quit sc
}
}

Just to understand your requirements correctly.
- a linebreak  $c(13,10)  would only be acceptable if it follows a segment terminator "|" 
- IF YES Is this just a pipe | or a double pipe || as in your example?
This could be a processing rule to check the last chars of the line
and ignoré the linebreak at a mismatch.   

 

SUPER examples  !   

THX for pointing

it still exists:

ClassMethod Build(f As %Integer)
{
 s a="#" f i=F:-1:1 w ?i,a,! s a=a_"##"
}

Just forget my contribution.
I'm not interested in digging for secrets!
I leave that to Indiana Jones    
my code is deleted ! it's not my type of fun

Hmm!
Where did you see the enclosing quotes? 
they are invisible in my browser.

I understand this. Have experienced it as well.

I could imagine 2 variants:

• creating a "clone" of the CSP based "synchronous" Queries we know from C/E to have the unique session
• just using xDBC based tools such as Squirrel, DBeaver, WinSQL, ..... which is probably better since SMP mimics ODBC mode, but doesn't use real xDBC connection
• external xDBC provides a 1:1 connection as a terminal session would do.     

As a first step I would try to find out if your Trigger is running in the same process as your CSP
just writing $JOB  with a  $H into a test global. eg.:

set ^stefan($h,$j)="CSP"  for CSP
set ^stefan($h,$j)="TRIGGER"  for the trigger code
;;; or use
do LOG^%ETN()  ; write to ^ERRORS

As @Enrico Parisi pointed out: IRIS.DAT is an independent structure
The link between file and Namespace is in the ConfigFile (??.CPF) in your install directory.
The file could be located anywhere.
 

I use the suggested common method for length calculation

/// write ##class(Golf.Task2).length()
ClassMethod length(
	class = {$classname()},
	method = "Build") As %Integer
{
  #dim methodObj As %Dictionary.MethodDefinition
  set methodObj = ##class(%Dictionary.MethodDefinition).IDKEYOpen(class, method)
  quit methodObj.Implementation.Size
}

also in terminal:
USER>p
         s (b,h)="*" f L=f:-1:1  w ?L,b,! s b=b_h_h
         F i=1:1:f K s,c S ($P(s," ",f-i+1),$P(c,"#",i*2))="" W s,c,!
 
  

65  ???